Buntarou Mori

Buntarou Mori is a transfer student who, after being talked into climbing the school building, discovered a sense of fulfillment upon reaching the top. After which, he became interested in rock-climbing. He is a loner who says he doesn't need friends and seems to have gone through something in the past. He would rather climb a mountain alone than with a partner.

After getting married he took the name Katou Buntarou.